Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[lib.sh] Reset virtual nodes after MaaS install"
  - [lib.sh] Reset virtual nodes after MaaS install

    For hybrid PODs (e.g. x86_64 jumpserver + control nodes, aarch64
    baremetal compute nodes), the virtual nodes rely on MaaS DHCP to be
    up when the OS boots, so issue a `virsh reset` accordingly.

    Instead of checking for online nodes using `test.ping`, use
    `saltutil.sync_all` to also sync Salt state modules to the virtual
    nodes (usually handled by baremetal_init state in HA deploys).

    JIRA: FUEL-338

    Change-Id: If689d057dc4438102c3a7428a97b9638e21bfdc5
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index c52837f..7fe07e3 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit c52837f7d28b7c0f231be2b0215a7035b26ae302
+Subproject commit 7fe07e31a3aca294b4093ba238ce648fa4cb0f38